Wright-Phillips and Onuoha have made the breakthrough into the Premiership this season have been rewarded with their first-ever call-up for an England squad.
Croft, who currently is on loan at Oldham, is now a veteran in the international set-up and the most experienced player in the squad
The 19-year-old already has five U20 caps and his overall figure at all youth levels is a remarkable 44 caps.
The game against Russia will take place at The Valley, home of Charlton, on Tuesday February 8.